How does a Breathalyzer Work?
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YouTubeNathan Cate
How does a Breathalyzer Work?
How does a breathalyzer actually work? These devices measure alcohol in your breath to estimate your blood alcohol content -- but they're far from perfect. Calibration errors, medical conditions, and operator mistakes can all lead to false readings. If you've been charged with DUI, those numbers can be challenged. Know your rights. Fight your ...
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